Message 405623 - Python tracker

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Author	arhadthedev
Recipients	arhadthedev, mark.dickinson
Date	2021-11-03.15:15:05
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1635952505.63.0.274372559268.issue45702@roundup.psfhosted.org>
In-reply-to

Content
When I first saw "default rounding precision of 64 bits", I've thought it's about "64 bit precision", aka binary64, aka double. So I suggested that the code expects some hardly known Intel FPU-specific binary56 instead. Now, after a second paragraph of your reply I see that in reality it's about significand precision (so rounding precision of 64 bits is for binary80, and 53 is for binary64). > at 53-bit precision (not 56-bit) You're right. That was a typo. Thank you for clarification, I'm closing the issue as not-a-bug.

When I first saw "default rounding precision of 64 bits", I've thought it's about "64 bit precision", aka binary64, aka double. So I suggested that the code expects some hardly known Intel FPU-specific binary56 instead. Now, after a second paragraph of your reply I see that in reality it's about significand precision (so rounding precision of 64 bits is for binary80, and 53 is for binary64).

> at 53-bit precision (not 56-bit)

You're right. That was a typo.

Thank you for clarification, I'm closing the issue as not-a-bug.

History
Date	User	Action	Args
2021-11-03 15:15:05	arhadthedev	set	recipients: + arhadthedev, mark.dickinson
2021-11-03 15:15:05	arhadthedev	set	messageid: <1635952505.63.0.274372559268.issue45702@roundup.psfhosted.org>
2021-11-03 15:15:05	arhadthedev	link	issue45702 messages
2021-11-03 15:15:05	arhadthedev	create